| 玉米SSR连锁图谱构建与株高及穗位高QTL定位 |
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| 引用本文： | 张志明,赵茂俊,荣廷昭,潘光堂.玉米SSR连锁图谱构建与株高及穗位高QTL定位[J].作物学报,2007,33(2):341-344. |
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| 作者姓名： | 张志明 赵茂俊 荣廷昭 潘光堂 |
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| 作者单位： | 四川农业大学玉米研究所∕教育部作物基因资源与遗传改良教育部重点实验室，四川雅安625014 |
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| 基金项目： | 国家高技术研究发展计划(863计划);教育部长江学者和创新团队发展计划;北京市自然科学基金;北京市农业育种基础研究创新平台项目 |
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| 摘 要： | 用玉米自交系组合R15×掖478的F2群体构建连锁图谱，并通过1年2点随机区组试验设计，考察玉米229个F2:4家系成株期的株高和穗位高。所建连锁图谱上共拟合146个SSR标记位点，覆盖基因组1 666 cM，标记间平均距离为11.4 cM。用复合区间作图法进行QTL分析，共检测到8个控制株高的QTL，分别位于第2、3、4、5和8染色体；3个控制穗位高的QTL位点，位于第4染色体。单个株高QTL的贡献率变幅为6.67%~11.59%，单个穗位高QTL贡献率变幅为10.46%~12.15%。
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| 关 键 词： | SSR 分子连锁图谱 数量性状位点(QTL) 株高 穗位高 玉米 |
| 收稿时间： | 2005-09-14 |
| 修稿时间： | 2006-07-16 |
SSR Linkage Map Construction and QTL Identification for Plant Height and Ear Height in Maize (Zea mays L.) |
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| ZHANG Zhi-Ming,ZHAO Mao-Jun,RONG Ting-Zhao,PAN Guang-Tang.SSR Linkage Map Construction and QTL Identification for Plant Height and Ear Height in Maize (Zea mays L.)[J].Acta Agronomica Sinica,2007,33(2):341-344. |
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| Authors: | ZHANG Zhi-Ming ZHAO Mao-Jun RONG Ting-Zhao PAN Guang-Tang |
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| Institution: | Maize Research Institute, Sichuan Agricultural University/Key Laboratory of Crop Genetic Resources and Improvement, Ministry of Education, Ya’an 625014, Sichuan, China |
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| Abstract: | A mapping population consisting of 229 F2 individuals derived from the cross between maize(Zea mays L.) inbreds R15 and Ye 478 was used in this study.Plant height(PH) and ear height(EH) of 229 F2:4 population individual plants were measured at two locations by random block design in 2003.A genetic linkage map was constructed containing 146 simple sequence repeat(SSR) markers,which covered 1 666 cM of the maize genome,with an average distance of 11.4 cM.Composite interval mapping identified eight QTL for PH located on chromosomes 2,3,4,5 and 8,and three QTL for EH located on chromosome 4,with explained phenotypic variation ranging from 6.67% to 11.59% and from 10.46% to 12.15%,respectively. |
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| Keywords: | SSR |
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